蓝墨云班课 编写MyCP.java

要求：

编写MyCP.java 实现类似Linux下cp XXX1 XXX2的功能，要求MyCP支持两个参数：

java MyCP -tx XXX1.txt XXX2.bin 用来把文本文件(内容为十进制数字)转化为二进制文件

java MyCP -xt XXX1.bin XXX2.txt 用来二进制文件把转化为文本文件(内容为十进制数字)

提交测试代码和运行结果截图，加上学号水印，提交码云代码链接。

我将主函数定义为MYDC;

然后通过调用输入文档，将其中的数转2进制到输出文档中，类代码如下：

public static void dumpToTwo(InputStream src, OutputStream dest)

throws IOException {

try (InputStream input = src; OutputStream output = dest) {

byte[] data = new byte[1];

int length;

while ((length = input.read(data)) != -1) {

String str = Integer.toBinaryString((data[0]&0xFF)+0x100).substring(1);

data[0] = Byte.parseByte(str);

output.write(data, 0, length);

}

}

}

调用输入文档，将其中的数转十进制到输出文档中，类代码如下：

public static void dumpToTen(InputStream src, OutputStream dest)

throws IOException {

try (InputStream input = src; OutputStream output = dest) {

byte[] data = new byte[1];

int length;

while ((length = input.read(data)) != -1) {

data[0] = Byte.parseByte(String.valueOf(data[0]),10);

output.write(data, 0, length);

}

}

}

这是我的完整代码：

/**

* Created by zx on 17-6-1.

*/

import java.io.*;

class MyCP{

public static void dumpToTwo(InputStream src, OutputStream dest)

throws IOException {

try (InputStream input = src; OutputStream output = dest) {

byte[] data = new byte[1];

int length;

while ((length = input.read(data)) != -1) {

String str = Integer.toBinaryString((data[0]&0xFF)+0x100).substring(1);

data[0] = Byte.parseByte(str);

output.write(data, 0, length);

}

}

}

public static void dumpToTen(InputStream src, OutputStream dest)

throws IOException {

try (InputStream input = src; OutputStream output = dest) {

byte[] data = new byte[1];

int length;

while ((length = input.read(data)) != -1) {

data[0] = Byte.parseByte(String.valueOf(data[0]),10);

output.write(data, 0, length);

}

}

}

public static void main(String[] args) {

FileInputStream fis = null;

FileOutputStream fos = null;

try {

fis = new FileInputStream("/home/zx/代码托管/shuru.java");

fos = new FileOutputStream("/home/zx/代码托管/shuchu.java");

dumpToTen(fis, fos);

}catch(Exception e) {

System.out.println(e);

}

}

}

截图如下：